31673163712 has 56 divisors (see below), whose sum is σ = 64349162640. Its totient is φ = 15463004160.

The previous prime is 31673163703. The next prime is 31673163727. The reversal of 31673163712 is 21736137613.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505239 + ... + 564457.

It is an arithmetic number, because the mean of its divisors is an integer number (1149092190).

Almost surely, 2^31673163712 is an apocalyptic number.

31673163712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31673163712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32174581320).

31673163712 is an abundant number, since it is smaller than the sum of its proper divisors (32675998928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31673163712 is a wasteful number, since it uses less digits than its factorization.

31673163712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59429 (or 59419 counting only the distinct ones).

The product of its digits is 95256, while the sum is 40.

The spelling of 31673163712 in words is "thirty-one billion, six hundred seventy-three million, one hundred sixty-three thousand, seven hundred twelve".